Improvement in wooden-tray machines



3 Sheets-Shet 1.

J. S. BROWN & L. KIMBALL, Jr.

A Wooden-Tray Machine. .No; 202,146. Pate'nted April 9,1878.

Wmmesses I N PETERS. PHOTD-LITHOGRAPHFR, WASHINGTON, D C.

3 Shee'Ls-Sheet 2. V

' J. BROWN & KIMBALL, Jr.

Wooden-Tray Machine. 4. No 202,146. Patented April 9,1878.

g Wmssas \mmhrs NJ'ETERS, FHOTO-UIHOGRAPHER. .WASNINGTON D 9;

UNITED Srnrns PATENT OFFICE.

JOHN S. BROWN, OF FISHERVILLE, NEW HAMPSHIRE, LEWIS KIMBALL, JR, OF EASTRIOHFORD, VERMONT.

IMPROVEMENT IN WOODEN-TRAY MACHINES.

Specification forming part of Letters Patent No. 202,146, dated April 9,1878; application filed February 13, 1878. I

To all whom it may concern:

Be it known that we, JOHN S. BROWN, of Fisherville, in the county ofMerrimack and State of New Hampshire, and Lnwrs KIMBALL, J r., of EastRichford, in the county of Franklin and State of Vermont, have inventedcertain new and useful Improvements in Machines for Making Wooden Trays,of which the following is a description:

Our invention consists in combining with the fixed frame to which thecutting-cylinder is attached a movable or sliding carriage, providedwith a holder for the tray-block, which holder slides with the carriage,and is adjustable, so that different sizes of trays may be made on thesame machine of the proper external shape and form.

In the drawings, Figure 1 represents a side View; Fig. 2, a plan of themachine. Figs. 3, 4, and 5 are details of the same.

A B represent the fixed part or body of the machine, in which thecutting cylinder is placed, the shaft of the latter being shown at m,Fig. 1. O D is a longitudinally-moving frame, which slides back andforth on the fixed frame A B on ways it h, or in any other convenientmanner. ward and forward by means of a lever, J,

which is connected with the handle J in such manner as to be readilymanaged by the operator.

F is the holder-plate, to which is attached the tray-block, and which isprovided with the opposite pivotal arms a a b b, and these pivotal armsturn in open sockets in the holderboxes E E. The pivotal arms a a b band boxes E E are made adjustable, so that they may be properly adjustedrelative to the cutting-knives, to preserve the proper form andproportions of the trays of difl'erent sizes. The

' pivotal arms a a b b are made of separate This carriage is movedbackso that the open sockets a b may be adjusted correspondingly to thepivotal arms.

It is obvious that if the same pivotal points on this machine were usedfor trays of different widths, their external shape and configurationwould be different, even when the carriage is moved so as to bring theholdera distance beyond the cutters corresponding to the increase ofwidth, and this external shape would be such, in some cases, as tolessen the practical and salable quality of the trays. Thisadjustability of the pivotal points, however, enables us to readily andeasily adapt the machine to trays of different widths, and at the sametime preserve the best external shape and configuration for the tray;and not only may this best external form be given to trays of differentwidths, but this method of adjustabiiity enables the machine to be usedfor trays of different depths as well.

The holder-boxes may be raised by setscrews, or in any other convenientmanner,

and the best external shape may be given by acorresponding adjustment ofthe pivotal arms and boxes. This raising of the holder-boxes may also beaccomplished by means of thin plates inserted under them, as shown at m,

A sliding gate, G, extends through standard on the boxes E E, whichserves to hold down the opposite pivotal arms when the holder is turnedto bring the sides of the tray-block to the actions of the knives. -Oneend of each gate Gr is bent at right angles to the gate, and this end isconnected to the arm L, as shown in Fig. 3. The figure of one of theboxes E (shown in Fig. 4) shows a slotted upright at the end oppositethe socket a for the pivotal arm a, which socket allows the gate Gr tobe drawn back far enough for the release of the arm a, as shown in Fig.3. The arms a a are released, the gate beingmoved far enough forward forthat purpose. If, now, the holder-plate is turned horizontal, and thehandle Z moved so as to bring the levers K K in the same straight line,both pivotal arms will be held down, and the angle-piece of the gatewill be in, or nearly so, the horizontal slot shown in Fig. 4:; but ifthe handle lismoved an equal distance in an opposite direction from thatshown in Fig. 3,

the angle-piece will slide through the slot in the box E, Fig. 4, andthe end of the gate will be drawn back to the center upright of the boxE, and the arms I) b will be released, so that the plate F may be turnedthe other end up. These sliding gates, one on each side of the carriage,are operated simultaneously by the handle I by means of the levers K Kand connecting-arms L L.

The levers turn on the fulcrums 70 k, and one of them is provided with astud, g, projecting through a slot, g, in the other lever, so that whenthe handle I and lever K are moved by the operator a correspondingmotion is given the other lever, and the gates on each side are thusoperated together. These sliding gates or bars are of such a length thatwhen the levers K K are in the same straight line they extend over andhold down both pairs of pivotal arms; but when moved to one end or theother one pair of opposite pivotal arms is held by them, while the otherpair is released.

The external form is given to the tray in the following manner: Arectangular block of the proper size is attached to the holder F bysetscrews or bolts, so that the longitudinal centers of the block andholder shall be in the 7 same vertical plane, or as nearly so aspossible:

The carriage being moved to bring the trayblock to one side of thecutting-cylinder, as shown in Fig. l, the sliding gate is moved so as tohold down the opposite pivotal arms a a, and the holder is then turnedon these pivotal arms, carrying the block with it, and causing thecuttin g-knives to give the proper external curved form to one side. Theholder is then turned horizontally, and the sliding gate moved to holddown the pivotal arms on both sides,

and the carriage is then moved along over the cutters, and the bottom ofthe tray planed off, and the form given to the ends. The carriage isthen moved an equal distance to the other side of the cutting-cylinder,the sliding gate is moved to hold down the other opposite pivotal arms,and the like external form is given to the other side.

The inside of the tray may be formed in the usual manner.

We claim as new and of our invention 1. In combination with thecutting-cylinder, attached to the body of the machine, the slidingcarriage O D and pivotal holder-plate F, substantially as described.

2. The combination of the movable carriage O D, block-holder F, pivotalarms a a b 0, boxes E E, and sliding gates G G with thecutting-cylinder, attached to the body A 13, substantially as described.

3. In combination with the block-holder F, the adjustable pivotal arms aa b b and adjustable boxes E E, substantially as described.

4. In combination with the pivotal arms a a b b of the block-holder F,the sliding gates G G, substantially as described.

5. The combination of the sliding bars G G, the connecting-arms L L, andlevers K K, the latter adapted to move said sliding bars simultaneously,substantially as described.

JOHN S. BROWN. LEWIS KIMBALL, J R.

\Vitnesses STEWART I. BROWN, LUTHER G. GAGE, A. W. OURTIs,

F. J EPSON.

